Demountable rim



Dec. 11, 1923. EAT/29$ E. M. SISLEY DEMOUNTABLE RIM Filed June a, 1922 E W2 SW us I llen "ll,

3)....1LMA UUNTABEE REE.

Application eies June a,

(ill wild m may concern:

it known. that I. EUGENE M.- .disnnr, u c tizen of the Unitcl States, residing at tiling-ton, in the county of Baker oi. Oregon, have invented-certain new and useful improvements in Demountahle rims; and I do declare the following to he full, clear, and exact description of the nvention, such a will enable others skilled the art to which it sppeitains to make nd use the same.

My invention relates to inrnrovements in automobile rims and more particularly to chose of the dcmo-untahle typeend of sectionsl. construction, so as to facilitate engagement with and disengagement from the tire, the object or" the invention being to proride an extremely simple and inex oensive. yet it highly efiicient and desirable rim structure which will effectively hold the tire when the rim sections are secured together, yet will permit easy changing of tires whenever necessary.

Wit-h the foregoing in View, the invention esides in the novel subject matter hereiniter described and claimed, the descripion being supplemented 'by the accompany 'n drawings.

Figure 1 is a perspective view showing the'two sections of the rim in juxtaposition.

Figure 2 is a. perspective View of the rim complete.

Figure 3 is a. detail transverse sectional view through the complete rim.

lnthe drawings above briefly described, the numeral 1 designates an outer continuous rim section having abead-engaging flange 2 on one edge while its other edge is free. Adapted to fit removably Within the rim section 1, is an inner rim section 3 heru bead-engaging flange 4 on one edge which cooperates with the flange 2 in holding the tire upon the rim. To secure the two rim sections 1 and 3 detachsbly toget-her, 1 provide the innersect-ion 3 with a plurality of spring tongues 5 whose free ends are positioned at the unflanged edge of the section 3 to engage the flanged edge of w Fe 9) the section 1. These tongues are preferably formed by transversely splitting the rim section 3 on preferably parallel lines as indicated in Figure l, and in most instances 1 crater to extend the tongues slightly beyond the free edge of the rim section and bend their free ends outwardly es indimted at 6 1522. Serial lilo. 56,833.

to hook around the flanged edge of the outer section 1. For the purpose of retracting the tongues 5 when the two rim sections are forced into operative relation with each other, I prefer to internally bevel the outer 59 section 1 as shown at 7. It. will thus be seen. that when the rim sections are moved into engagement with each other with the projecting ends 6 of the tongues 5 engaging the bevel 7, simple forcing of the inner section 435 3 into the outer sect-ion i will retract the tongues until the two rim sections have been completely telescoped. -When this occurs, the tongues spring out under their own resiliency and interlock with the outer rim section 1 as shown clearly in Figs. 2 and 3. /Vith the two rim sections disconnected as shown in Fig. 1, the outer section 1 is laid upon a garage fioor or the like and the tire is slipped over the same. Then, it is simply necessary to start the rim section 3 into the section 1 by hand and then force it completely in place, for instance by foot pressure. It is'thus a. much easier task to apply the tire, than when rims of the ordinary forms are used.

Since excellent results may'be obtained from the details disclosed, they are preferably followed, but withinthe scope of the invention as claimed, numerous minor changes may of course he made.

1 claim:

1. An innerrimf' section having one free edge and s tire-engaging flange on its other edge, said rim section being provided with relatively close transverse splits ropening through its free edge to form a spring tongue between each pair of splits, the por- E the rim sections forming the tongues tions or being extended beyond the free edge of the o5 rim section and the outer ends of the tongues losing bent laterally outward to engage the outer face of a flange at the edge of an outer rimscction into which the inner rim section telescopes.

2. A. demountalole rim comprising inner and outer continuous rim sections telescoping one within the other, the outer rim section having one edge portion provided with a circumferentielly extending tire engaging 05 vflange and having its other edge portion provided with a, bevel forming on inner co n face, the inner rim section having one edge portion provided with a, tire engaging flange and out transversely from its other e ge 9% no 

